Ubisoft initially toyed around with making Mario + Rabbids a musical game or a first-person shooter

Mario + Rabbids Kingdom Battle is not your typical game. It makes sense then that during early development, Ubisoft considered a few different genres for the title.

Creative director Davide Soliani told Glixel that Mario + Rabbids Kingdom Battle was initially considered as a musical, or even a first-person shooter. He said:

“We started to scratch them out, one after the other. We went through a musical game, a first-person shooter game; but really the team is composed of mainly tactical fans.”

Soliani had also mentioned that, early on, a group of five people came up with 13 ideas. Most of these are a mystery.

Source